Hi @KaKaRoT, You should make changes to the Global Header content settings in the Content Settings section of your HubSpot account. This will allow you to update the logo for all landing pages in one place.
To do this, navigate to Content > Design Manager > Global Header and Footer. From there, you can click the "Edit" button at the top of the page, and then update the logo URL in the "Logo link" field.
Once you save your changes, all of your HubSpot landing pages will show the updated logo.
Hi @KaKaRoT , it might depend what theme you are using, or if you are using the old code based templates.
If you aren't able to fix the logo link via the global header as @Syeda_Fatima suggested, please share more details about the theme/template used so we can get you pointed in the right direction 🙂
If my reply answered your question please mark it as a solution to make it easier for others to find.